<!DOCTYPE html>
<html lang="zh-cn">
<head>
	<meta charset="utf-8">
	<title>001-第一个页面.html</title>
	<style>
		*{
		margin: 0;
		padding: 0;
		
		}
	</style>
</head>
<body>
	<p style="color: red;font-size:24px; "onclick="this.style.color='blue'">
		hello world!	
	</p>
</body>
</html>
